Gannon 31 piece Lower Parts Kit

Gannon AR-15 Lower Parts Kit

Upgrade your AR-15 build with confidence using our AR-15 31-Piece Lower Parts Kit — a complete, precision-machined solution for builders and enthusiasts who demand performance, reliability, and seamless assembly. Whether you're starting a new build or refreshing an existing lower receiver, this kit includes everything you need to get the job done right.

 Compatible with all standard mil-spec AR-15 lower receivers

 Ideal for new builds or replacement of worn components

 Machined to exacting specifications for flawless fit & function

 What's Included – 31 Precision Components

Bolt Catch Assembly

 Bolt Catch
 Bolt Catch Plunger
 Bolt Catch Roll Pin
 Bolt Catch Spring

Buffer Retainer Group

 Buffer Retainer Pin
 Buffer Retainer Spring

Detent Springs & Pins

 2x Detent Springs
 Pivot Pin Detent
 Take Down Pin Detent

Fire Control Group

 Hammer
 Hammer Pin
 Hammer Spring
 Trigger
 Trigger Pin
 Trigger Spring
 Disconnector
 Disconnector Spring

Magazine Catch Assembly

 Magazine Catch
 Magazine Catch Button
 Magazine Catch Spring

Pistol Grip Assembly

 Pistol Grip
 Pistol Grip Screw
 Pistol Grip Lock Washer

Selector & Safety Group

 Selector
 Selector Spring
 Safety Detent

Take Down & Pivot Pins

 Pivot Pin
 Take Down Pin

Trigger Guard Assembly

 Trigger Guard
 Trigger Guard Roll Pin

Why Choose this Lower Parts Kit?

 Mil-Spec Compatibility – Works with any standard AR-15 lower
 Full 31-Piece Kit – No missing parts, no surprises
 DIY & Pro-Friendly – Ideal for beginners and seasoned builders alike
 Quality-Controlled – All components inspected for reliability & fit
 Enhanced Performance – Smooth trigger pull, solid safety engagement, and dependable mag retention

Built for Builders Who Refuse to Compromise

At Gannon, we stand behind every part we sell. This AR-15 Lower Parts Kit delivers the precision, durability, and ease of installation that sets serious builds apart. Perfect for your next project, this kit makes assembling your lower receiver fast, simple, and rock-solid reliable.